Exam Review: Graphing Trig and Trig Identities

Sine or Cosine?

• y=sinx

• y=cosx

Sine or Cosine?

• y=sinx

• y=cosx

• A

• B

• C

• D

• A

• B

• C

• D

Which function represents the graph?

• f(x) = cos (⅓ x)

• f(x) = ⅓ cos x

• f(x) = ⅓ sin x

• f(x) = sin (⅓ x)

Please select the correct solution 
cos ² x + sin ² x=  

• 1

• csc ² x + sec ² x

• sin ² x

• 1 - sin ² x

Simplify

• -1

• sin θ

• csc θ

• 1

Simplify

• secθ

• cos²θ

• sin²θ

• sin²θ/cos²θ

Simplify this to a basic trigonometry function:
tan(x)csc(x) 

• tanx

• secx

• cotx

• cscx

Find the amplitude:
y = 4cos(x-90) + 3

• 90

• 3

• 4

• none